chore: support set rag only

[appflowy]

Feature Preview

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PR Checklist

• My code adheres to AppFlowy's Conventions
• I've listed at least one issue that this PR fixes in the description above.
• I've added a test(s) to validate changes in this PR, or this PR only contains semantic changes.
• All existing tests are passing.

[github-actions]

🥷 Ninja i18n – 🛎️ Translations need to be updated

Project /project.inlang

lint rule	new reports	level	link
Missing translation	28	warning	contribute (via Fink 🐦)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.41%. Comparing base (7db11c7) to head (8246af9).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7057      +/-   ##
==========================================
- Coverage   64.44%   64.41%   -0.03%     
==========================================
  Files         280      280              
  Lines       10738    10738              
  Branches     1449     1449              
==========================================
- Hits         6920     6917       -3     
- Misses       3646     3648       +2     
- Partials      172      173       +1     

Flag	Coverage Δ
appflowy_web_app	64.41% <ø> (-0.03%)	⬇️

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